Question

我对QuadArray 3D上的纹理2D有疑问。

当我在quad数组上应用纹理时，结果不是我所期望的： Texture on quadarray I have

由于四边形是平面，我希望纹理变形更平滑： Texture I expect

以下是我使用的代码：

public class Test3D extends JPanel {
SimpleUniverse simpleU;
static boolean application = false;

public BranchGroup createSceneGraph() {
    BranchGroup objRoot = new BranchGroup();
    Appearance polygon1Appearance = new Appearance();

    GeometryInfo polygon1 = new GeometryInfo(GeometryInfo.QUAD_ARRAY);

    polygon1.setTextureCoordinateParams(1, 2);

    polygon1.setCoordinates(new Point3f[]{new Point3f(0f, 0f, 0f), new Point3f(2f, 0f, 0f), new Point3f(3f, 3f, 0f), new Point3f(-3f, 3f, 0f)});

    polygon1.setTextureCoordinates(0, new TexCoord4f[]{new TexCoord2f(0.0f, 0.0f)//
            , new TexCoord2f(1.0f, 0.0f) //
            , new TexCoord2f(1.0f, 1.0f) //
            , new TexCoord2f(0.0f, 1.0f)});

   NormalGenerator normalGenerator = new NormalGenerator();
   normalGenerator.generateNormals(polygon1);

   Texture texImage = new TextureLoader("texture.png", this).getTexture();

   polygon1Appearance.setTexture(texImage);
   objRoot.addChild(new Shape3D(polygon1.getGeometryArray(), polygon1Appearance));
   return objRoot;
}

public Test3D() {
    init();
}



public void init() {
    setLayout(new BorderLayout());

    Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
    add("Center", c);
    BranchGroup scene = createSceneGraph();
    simpleU = new SimpleUniverse(c);
    TransformGroup tg = simpleU.getViewingPlatform().getViewPlatformTransform();
    Transform3D t3d = new Transform3D();
    t3d.setTranslation(new Vector3f(0f, 0f, 10f));
    tg.setTransform(t3d);
    scene.compile();
    simpleU.addBranchGraph(scene);
}



public static void main(final String[] args) {
    application = true;
    JFrame frame = new JFrame();
    frame.setSize(500, 500);
    frame.add(new Test3D());
    frame.setVisible(true);
}}

有没有人有解决这个问题的方法？

Answer 1

不幸的是，http://www.xyzw.us/~cass/qcoord/中的解决方案适用于梯形几何，但对于非特定四边形，此解决方案不起作用。

前：

  polygon1.setCoordinates(new Point3f[]{new Point3f(0f, 0f, 0f), new Point3f(2f, -1f, 0f), new Point3f(3f, 3f, 0f), new Point3f(-4f, 3f, 0f)});

Java 3D纹理变形

1 个答案: